Tire alarm



Stpt. 2 1924.

O. F. SCHROEDER TIRE ALARM Fil|d Nov. 12. 1921 Patenteci Sept. 2,1924.

UNITED STATES o mro FRED SCHBOEDER, 01 SANTA ANA, CALIFORNIA.

'IIRE ALARM.

Applcationfiled November 12, 1921 Seria1 No. 514,626.

T a]l w/wm 2t mag 00n0em,

Be itknown that I Orr0 FRED SCI-IROEDER, e eitizen of the United States,residing at Santa Ans, in the county 0 Orangel and State of California,have invented certain new and useful Improvements in Tire larn1s,ofwh1ehthe followrng 15 a SP60lfication.

The present invention relates to that class of de "ices designed todenote by anaudible signal on each, suecessive revolution of a pnemnatictirethe degree of deflation of the tire.

This invention eonsistsin en apparatus employing s vibratorv memberactuated by a toothed wheel whih is in turn operated hy the move1hent ofa lever in one direction.

1nong the objects of the present inventien, ere to provide aeonstruction Whieh is capeble of nmnufaeturmg and assernlohng at ane1;tre1nely low eest, due to the inexpcnsive sta1np1ngs c0nta1nedthere1n, and

tlie mee of u flat vibrating plate or member in plaee of a single memberof the bell 0r ringrng type; to prov1de a construct1on which issubstantially dustproof end one pertion, size and minor details ofconstruetien withinthe scope of the claim may be resorted t0 withoutdeparting from the spirit or saerificing any of the advantages of theinvention.

T0 more fully comprehend the invention, referene is direeted to theaceompanying drawings, wherein.

Fig. 1 is a view in breken side elevation 0 a portion of a wheel with myinvention mounted thereon.

Fig. 2 is a seetiorial view taken on line 22 of Fig. 1, illustrating indotted lines the tire position when the same is partially deflated.

Fig. 3 is a transverse seetional view taken on line 3-3 of Fig. 1.

Fig. 4 is a vertieal seetional view taken on line 4i of Fig. 5.

Fig. 5 is a view teken on line 22 of Fig.

PATENT 1, viewed in the direetion reverjg the a rrows-Fig. 1.

Fig. 6 is a view in detail on line 6-6 0f Fig. 4=.

Inthe drawings, 1 indieates L vertialtire 1n0nnted 01ia rirn 2 carriedbya felloe 3,--

whieh is in turn-supportedby spekes 1. Se-

eurdinany suiteble manner by screws 5 te the inner periphery 01 theelloe 3 is a c upped base 6. The base 6; provides a sup port for en openelong ated ineehanisn mo unting frame 7, eo 1isisting of Side members 8and the top conneeting ln elnber 9. Thesidemembers 8 are i1nited by 'isha ft0 on which is rotatibly inountedesleev e lll carryingatone-end apinion gear 12 and spaeed -therefron adj acent "its epposite end isaratehet 13. V Rotatably. mounted' 011 sid sleeve 11 loetween the pinion12 land ratehet l3 is a peri pherally toothed p erating wheel r disk 14-of ediameter t0 extend in close proximity to the meniber 9. One faee ofthe me1nber 14 carries a pivetally 1n0nnted pawl 15 yieldably forcedinwardly into contact with the teeth of the ratehet 13 bynn operaiingspring 16Figs. 1- end5 of the draw ings- Seeured te the 1ne1nhers 8 arethe portions 17 of en auxiliary frame f0rrned with 211 annular ri1n 18,within whieh is held a vibrating disk 19.0entrally through whichprojeets an sdjusiable eentaet serew 20 whieh is adepted to be engagedby the peripheral teeth 21 en disk 14 when said disk 0r wheel isrotated.

Extended inwardly fr01n 0ne 0f the nieni bers 8 at a point above theshaft 10is stubshaft 22 rotatably mounting a pinion 23 connected with ageer wheel 24; whichis adaptedto engage the pinion 12 011 the S166VS 11.2111 arenate raak 25 carried by an 2t111126 secured 150 and extendingupwairdl froiri 011e Coaeting with the pinion 23 is end of a rotaryshaft 27 rotatable in a bear mg 28 in the member 8 n1ounting the stubshaft 22. The shait 27 extends upwardlv 1 over p p l of the PPGCl base 6and to the same is secured ons end of EL bent lever 29, the free end 30of which is adapted to contact with the outer suriace of the tire casing1, as indicated in Fig. 2 ofthe draw- .dapted i or positioning QV themechanism above described and to be detachably se cured to the cppedbase 6 by screws 32.

On each complete revolution of the re l1icle rvheel, the degree ordistortion of tl1e tire, due to lack of deflaton will swing tlie lever29 outwardly, causng the raak 25 to mpart, through the gear train, arotative movement to the vvheel 1e in the direction of the arrowvs-Figs.2 and 5. This operation causes the teeth 21 to contact with the member20 and vibrate the member 19, warning the vehicle operator of thecondition of infiaton or deflation of the tire. Tlie continued rotationof tl1e vehicle wheel wvhich removes that portion of tlie tire adjacentto the lever 1 from in contact with the road surface, permtting the tireto assnme its normal shape, permts tl1e spring 33 te operate or draw thelever29 inWardly maintaining the end thereof in contact wvth the tiresnrface, Which movement rotates the sleeve 11 on the shaft 10 and withinthe phragm 19.

It Wll be observed that the length of the rack 25 permits of themonntingof this of different diameters or cross sectional areas Withoutrequiri1g anj adjustment of the mechanism.

Havng thus described my nvention, What 1 claim as new and desire t0seure by Letrup of the man frame and including a diaphragm mounting ringdisposed parallel with the stirrup, a. dap hragm peripherally held atsubstantally right angles to the main frame members,an adjustablecontact 'pin centrally carred by the diaphragm with its end projectingthrough the aperture in the stirrup of the main frame, a shaft extendedtransversely between the main frame members, a pawl and ratchet operatedtoothd vvheel carried by said shaft With its periphery in cooperatverelation Wi=th the contact pin, a cap for fitting over said frames toenclose the same and said diaphragm and detachably secured t0 said base,

and a lever secured at .one end of the shaftij In testimony whereof Ihave signed my name to this specification. present invention on felloesmountmg tnes OT TO FRED SCHROEDER;

